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American Powerhouse

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  1. #1
    LTX Member


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    Oct 2014
    Name
    Justin
    Vehicle
    1995 Formula
    Location
    Houston, TX
    Posts
    67

    Default No Communication

    I noticed my car running funny today. Popping and running rough under load. I hooked up my laptop and tried to use datamaster to diagnose the issue but it won't connect. When I do a test, it shows there's a pcm present but that's about the extent of the communications. Already tried cleaning out the connector. Any ideas?
    95 Cyber Grey Formula M6
    396 ported AFRs
    236/242 .582/.582 112
    Dynoed 502rwhp 455 rwtq

  2. #2

    Default

    way back if the fuse for the cigarette was blown it would not let you communicate with the PCM, check that.

  3. #3
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    Justin
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    1995 Formula
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    Default

    I found it. The nuts on the junction box were loose.

  4. #4
    LTX Member


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    Justin
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    1995 Formula
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    Default

    It came back. Tried swapping the pcm. Nothing changed

  5. #5

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    Quote Originally Posted by ElkySS View Post
    It came back. Tried swapping the pcm. Nothing changed
    have you checked the pinout on the aldl connector to make sure you have power and ground?

  6. #6
    LTX Member


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    Justin
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    1995 Formula
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    Default

    Turns out me cable is fucked up. You can wigle it on the usb side and it looses connection

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